/*
 * Copyright (C) 2025 Huawei Device Co., Ltd.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

import { grpc, LogUtils } from '@ohos/grpc';
import { hello } from '../helloworld/hello';

export default class BiFlowSample {
  private stream: grpc.ClientDuplexStream<hello.HelloRequest, hello.HelloResponse> = null;

  init(): grpc.ClientDuplexStream<hello.HelloRequest, hello.HelloResponse> {

    const client = new hello.HelloServiceClient('grpcb.in:9001', grpc.credentials.createSsl())

    this.stream = client.BidiHello()

    this.stream.on('data', (chunk: hello.HelloResponse) => {
      LogUtils.getInstance().LOGI('BiFlowSample===>data:' + chunk);
    });
    this.stream.on('response', (headers: string) => {
      LogUtils.getInstance().LOGI("BiFlowSample===>response:" + JSON.stringify(headers));
    });

    this.stream.on('close', () => {
      LogUtils.getInstance().LOGI('BiFlowSample===>close');
    });

    this.stream.on('error', (err: string) => {
      LogUtils.getInstance().LOGI('BiFlowSample===>error:' + JSON.stringify(err));
      this.stream = null
    });

  }

  sendMsg() {
    if (!this.stream) {
      this.init();
    }
    let request = new hello.HelloRequest(["test hello world"]);
    this.stream?.write(request);
  }

  sendMsg2() {
    if (!this.stream) {
      this.init();
    }
    let request = new hello.HelloRequest(["test hello world2"]);
    this.stream?.write(request);
  }

  close() {
    this.stream?.close();
    this.stream = null;
  }
}